Aquasana 1-Stage Under Counter Water Filter System Removes up to 99% of 77 contaminants including lead, mercury, asbestos, herbicides, pesticides, pharmaceuticals, and more Nothing added and zero waste - no water is wasted and no harmful contaminants are added to your water during filtration Only 13 cents per gallon - 5x the capacity of the leading gravity pitcher. Healthy, clean water for less than bottled water Retains the healthy minerals - Claryum filtration keeps calcium, potassium, and magnesium for the healthiest drinking water Stylish all metal, chrome faucet included - 100% lead free Includes first filter, faucet, and all parts required for DIY installation - no plumber required Full system NSF certified to standards 42, 53, 401 +P473 - will not leach contaminants back into your water